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Biomedical subjects

A Biaggi

Publications and source records attributed to A Biaggi.

At least 19 recordsLinked to original sources
PubMed1992

Acute colitis associated with prolonged administration of neuroleptics.

We describe a 29-year-old patient who developed acute colitis limited to the sigmoid and left colon with features mimicking ischemic injury after a prolonged administration of trifluoroperazine and levomepromazine, two phenothiazines in association with haloperidol, another neuroleptic, and biperidene, an anticholinergic compound. The discontinuation of these drugs was followed by a prompt and complete recovery, and no other cause of acute colitis was found. The subsequent administration of sultopride, a neuroleptic from the benzamide family and then the readministration of haloperidol were well tolerated. No colonic disorder occurred for the following months. This case strongly supports the view that neuroleptic agents, in particular phenothiazines, may induce acute colitis and that haloperidol, a butyrophenone derivative, or sultopride, a benzamide-related neuroleptic, can be administered thereafter without recurrence of the disease.

Adult↗
PubMed1992

High-resolution CT of parenchymal lung disease: precise correlation with histologic findings.

To provide a precise correlation between high-resolution computed tomographic (CT) findings and histologic studies of various parenchymal lung diseases, 20 fixed and inflated lungs were studied as follows: (a) Every lung was cut at the corresponding CT level into 1.5-mm-thick sections, (b) selected slices were cut into small blocks to prepare histologic slides, (c) each slide was photographed, and (d) the image of the entire lung section was reconstituted with the enlarged photographs (assembled as in a jigsaw puzzle). Results obtained in cases of normal lungs, pulmonary edema, alveolitis, hypersensitivity pneumonitis, emphysema, Pneumocystis carinii pneumonia, silicosis-asbestosis, and idiopathic pulmonary fibrosis demonstrated the method to be accurate in correlating high-resolution CT findings and the corresponding histologic data.

Alveolitis, Extrinsic Allergic↗
PubMed1992

[Histopathology and ultrastructure of opportunistic infections of the digestive tract in acquired immunodeficiency syndrome].

Light and electron microscopy studies of digestive tract biopsy specimens from AIDS patients are very useful for the detection of opportunistic pathogens which may be located in: the lumen (bacteria, Candida albicans, Giardia lamblia), enterocyte brush border (Cryptosporidium sp), enterocyte cytoplasm (Enterocytozoon bieneusi), enterocyte nuclei (cytomegalovirus), or cytoplasm of lamina propria macrophages (Mycobacterium avium intracellulare). These studies may also be useful to detect combinations of morbid conditions and to evaluate the effectiveness (if any) of therapeutic agents.

AIDS-Related Opportunistic Infections↗
PubMed1992

[The value of biopsy of the accessory labial salivary glands for the diagnosis of amylosis].

Diagnosis of amyloidosis depends on the demonstration of amyloid deposits in biopsies using specific stains. Recently, in addition to classical biopsies (kidney, liver, gum, skin, rectal mucosa), labial salivary gland biopsy has been recommended as safe diagnostic method. In our recruitment, it allowed the fortuitous discovery of amyloidosis in three patients suffering from rheumatoid polyarthritis or spondylarthritis. In five other patients (2 cases of familial amyloidosis, 1 dysglobulinemia, 2 primary cardiac amyloidosis), biopsy was performed for systematic search of amyloidosis. In five of these eight cases, a sicca syndrome was associated with the salivary deposits. These deposits were stained with congo red viewed in polarized light and with T thioflavine. Besides, Wright's method allowed to know the AL or AA type of amyloidosis and thus to guide the treatment. On the whole, labial salivary gland biopsy is a highly sensitive method for diagnosis of primary and secondary amyloidosis.

Adult↗
PubMed1992

[Keratosis of the oral cavity].

Among white lesions of the oral cavity, keratoses can be suspected clinically but should be confirmed by histologic studies. Only examination under the microscope can demonstrate superficial keratinization of the epithelium. Irritative keratosis, dysplastic and malignant keratoses, and specific clinico-pathologic keratoses are reviewed successively. The differential diagnosis of white lesions of the oral cavity is discussed.

Candidiasis, Oral↗
PubMed1992

[Necrotizing sialometaplasia].

Necrotizing sialometaplasia is an infrequent, nonmalignant, self-limited condition involving the accessory salivary glands. Clinical and histologic features of necrotizing sialometaplasia may mistakenly suggest malignant disease. This fact emphasizes the importance of carefully correlating clinical and pathologic findings and of looking for histologic criteria indicative of nonmalignant disease. Three cases are discussed and the relevant literature is reviewed.

Adult↗
PubMed1992

[A malignant salivary lymphoepithelial lesion with a poorly differentiated epidermoid carcinoma. Apropos a case].

A case of malignant lymphoepithelial lesion of the submandibular gland is reported in a 71-years-old woman. The carcinoma showed a poorly differentiated pattern and its epidermoid nature was obvious after immunohistochemistry and electron microscopy. The epithelial nests were lying in an abundant lymphoid stroma consisting of small lymphocytes. A recurrence occurred ten months after surgical treatment. This observation is compared with those already related in the literature.

Aged↗
PubMed1969

[ecture on bridges].

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Denture, Partial, Fixed↗